<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="">

        <!-- 输入框 -->
        账户: <input type="text" name="username" id=""><br>
        密码: <input type="password" name="password" id=""><br>

        <!-- 按钮 -->
        <button type="reset">重置</button><br>
        <button type="submit">提交</button><br>

        <!-- 单选框 -->
        <input type="radio">

        <!-- 复选框 -->
        <input type="checkbox" name="" id="">

        <!-- 下拉列表框 -->
        <select name="happiness" id="">
            <option value="football">足球</option>
            <option value="basketball">篮球</option>
            <option value="music">音乐</option>
        </select>

        <!-- 文本域 -->
        <textarea name="" id="" cols="30" rows="10"></textarea>
    </form>
</body>
</html>